Im working on that feature yet, my bad that it was already available in the first release (forgot to comment the line to not show de option in the admin).

Can you give me a link to your blog? You can easily hide the default comment section by adding 3 lines in the .css file of the plugin ( I just need to know the ID of the wrapper of your comments, thats why I need the link ;))

I have resolved it. It is not only caused by that wrapper. I am following your instruction in wordpress.css in this plugins directory and adding some other wrappers that used by my theme and default wordpress css.